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Derotational Hybrid Closed-Wedge High Tibial Osteotomy for Knee Osteoarthritis With Patellar Subluxation Caused by Tibial Torsional Deformity

Overview
Journal Arthrosc Tech
Publisher Elsevier
Date 2023 Nov 9
PMID 37942092
Authors
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Abstract

Patellar subluxation and recurrent dislocation are commonly treated with medial patellofemoral ligament reconstruction, and patients with predisposing factors for these problems often require additional bony realignment procedures. However, these procedures mainly address problems in the axial plane, and patients with medial-compartmental knee osteoarthritis may require further realignment in the coronal plane. In this Technical Note article, we introduce our technique for derotational hybrid closed-wedge high tibial osteotomy. Using this technique, simultaneous 3-dimensional realignment in the axial, coronal, and sagittal planes can be achieved in patients with medial compartmental knee osteoarthritis and patellar subluxation caused by a tibial torsional deformity. The indications for the technique and the preoperative planning assessments involving a static torsional deformity analysis on computed tomography images and a dynamic gait analysis by our walking-on-paper method are presented. This is followed by a detailed description of the surgical procedure, together with consideration of the pearls and pitfalls of the procedure. A video of the surgery performed in a representative case with medial knee osteoarthritis and patellar subluxation in the right knee owing to an outward tibial torsion deformity is also provided.

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